M3 ORANGE(OX-10) provides very flexible key customization. In Alpha-numeric version, all physical buttons except the power button are customizable subject to the registry change method is used.
However, in general (GUI, M3.INI), only 14 buttons are customizable, please refer to M3 ORANGE(OX-10) above.
Under registry path: HKEY_LOCAL_MACHINE\ControlPanel\Keypad\MultiFunc, user will find all button keys and values including sidekey buttons(Right Up/Down, Volume Up/Down)
